Lock.



L. scHoNwALD.

L LOCK.

APPLICATION FILED DCT- 26. |9l1.

Patented Apr. 29,1919.

plug P worksvertibally in tlie slotl)2 of the bolt D and holds the parts connected therewith against lateral movemeiit.

When the disk J is rotated in counterclockwise direction the extremity of its arm J first comes in contact with the tumbler M atth'e notch-br recess-Maand depresse's the tumbler so that the lug-.4Nl passes out of therecess L. Further rotation of the disk withdraws thearm Jf from the recess lil` and permits the tumbler to rise under the pressure. of the spring O until the lug N rest s in the recess L2. `The rotation of the-diskisL then continued until thea'rm J .engages the recess M3, depresses the tumbler andmoves the said tumbler and the bolt forward until the lug N is in alinement with the recess L3, when the Withdrawal, of thearm caused by further rotation permits the tumbler to rise again and the' said lug to enter the said-recess L3.- In this position ithe bolts have been. shot and are, held in locked position bythe engagement O the lug N and the recess L3. The unlocking movement is the reverse of the movement just described, two `rotations of the disk being required for each complete movement, and va vrelatively long movement ofthev bolts thus bbtained, The voperation ofthe lockZ by means of akey or other devicefrom the outside is substantially the same, theypart K? engaging-the notches of the .tumbler in the same manner as the notchesof ythe tumbler :M: are engagedby thelfextlvemity of the arm J It will ybe seen that for ordinary purposes the locking and unlockingmovements may be produced av partial rotation of the knob and its.

disky arm or-the key-Tas the case may be-'- causingthe lirstmovement described or the reverse movement, fand a resulting half movementmf" tliegbolts.; When, however, it- .is desiredtojlockthedoer or the like morel on closingit for the night-f seeureyy vas the 3 .bolts f may What licleimislf L 1,.; The combination of@ bolt, farti-connected with said. bolt and movable angularly said movable ,pari-and the said fixed ipart ati different peints in -zthe movement of the bolt, saidmovable part. having recessesi arrangedto .be;.engagedsuceessively and intermittently parthaving recesses; whichare engagedV bythe? saidimovrable part :when the bolt-moving` mea-Ds' are-out ofo-perating engagementwith said-I Iloyable part. i

move-therewith, a single-means.- for .moving be .moved t0 their4 *extreme 10st-ing positlon, and Security egal-11st. forci with in locking ,gagement by the bolt-movmgdevice,

the said boltand also moving the said member in a direction angular to the movement .llhesaid member with respect to said bolt when said member is released by the boltmoving` means, and a fixed member arranged to be" enga-ged Yby the said movable when it.- i,s -s oreleased, said fixed member having a plurality of recesses arranged to be engaged by the movable member successively when said member is released-by 'the-boltmoving means, and a xed member arranged to be engaged by the said movable member when it is -so released, vsaid fixed member having'three recessesarranged tobe engaged by a portion off-said movable member when the bolt is iny unlocked position and in its extreme locked positionand when the saidbolt is in an intennediateposition. i-

4. The combination o f fa,- bolt,

move therewith,'a singleme an s for moving the said boltfandalsg movin-g the said mem'-,

ya' movable Vmember mounted thereomand' adapted to member when' tion and janotheryarrangedftovbe engaged' thereby when" the' bolt is'y .in apOsiiJioIIl its unlocked. position.

5.A :The combination'-y Ofi aufboltpa member mounted thereonzand moving .thereand llhlOGkiIlg-ld'eotin Ofa the bolts movement, but haviindependent angular movement thereon, a bo t-moving de- With -respect thereto,- means-forfmovin the.

said b'olt, .a fixed pagrt mounted adj acentt eref .to .andmea-ns forj causing theengagementof vice arranged to engage said member and .to

tween its'said extreme flocked-Positionen@ I".

impart angular movement thereto, .and ,alsofl locking. and unlocking movement of the bolt by a single movement. 1off -said bolt-moving device, said movable memberion the bolt havinga plurality oifzportionsv adapted to be en-.-

a ed Vsuccessiv e'ly-and intermittently by-.the ol '-moving'devloee and -automaticmeans for returning said movable niembertoits normal 'position ,with respect tothefboltibetween said engagementmand za Xed member; llav-ing ra. plurality of portions arrangedto lhomage-ged by said movable member successively and in-f termittentlyl between the periods of its ena larvtogtheglm mentbfthgpst named Infaf-lockfthe:vnibination with Suit# epas'ing of ,n.ffbolt, means adapted to be forimovingrhf LEOPQLD www w www :u mv am mw mais 'fconiin'mnmfraw q 

